Rotary thread guide for cross-winding frames



June 23, 1925.

, w. REINERS ET AL R OTARY THREAD GUIDE FOR CROSS WINDING FRAMES FiledMay 1324 3 Sheets-Sheet June 23, 1925. 1,543,519

W. REINERS ET AL ROTARY THREAD GUIDE FOR CROSS WINDING FRAMES Filed May 2 1924 s Sheets-Sheet 2' June 23, 1925. 1,543,519

W. REINERS ET AL ROTARY THREAD GUIDE FOR CROSS WINDING FRAMES Filed May 1924 3 Sheets-Sheet 5 Patented June 23, 1925.

UNITED STATES PATENT OFFICE.

ROTARY THREAD GUIDE FOR CROSS-WINDING FRAMES.

Application filed May 28, 1924. Serial No. 716,385.

To all whom it may concern:

Be it known that we, VVILHELM RnINERs, manufacturer, and GUSTAV KAHLiscH, engineer, subjects of the German Republic, residing at Munich-Gladbach, Germany, Rheydterstrasse 48 and Vestrasse 4, have invented certain new and useful Improvements in Rotary Thread Guides for Cross lVinding Frames, of which the following is a specification.

In winding frames, rotary thread guides formed of wire or sheet metal wings instead of traversing thread guides or split drums have been previously used, as evidenced by the German patent record No. 231,800. In a rotary guide of this kind, two wings are shaped and arranged so as to provide peripheral guiding edges which are supported on radial arms pointing vertically towards the axis of the rotary guide, the radial arms of each wing being fastened to two collars in such away that each collar supports one arm of each wing. In this arrangement, the radial arms supporting the ends of the guiding edges are in the way of the yarn which therefore cuts grooves into them :these grooves catch and break the yarn and cause it to be wrapped round the centre of. the rotary guide, causing great loss of time and considerable loss of material as waste. In this known type of rotary guide, the free and easy passage of the yarn also requires suflicient space to be left between the radial wing arms in each collar, to ensure that the yarn slips easily from one wing to the other. Owing to these great difiiculties, the aforementioned rotary guide has been found to be applicable only to pirn winding frames, but not to cross winding frames. In the case of cross wound spools or cheeses, the yarn requires to be more efiiciently controlled whilst winding, particularly at the reversing points, where the yarn must be guided in such a positive fashion that all the layers of yarn on the cheese will have the same width so as to ensure cheeses with straight edges. Such control is also obtainable by means of the ordinary split drum, but the latter has great drawbacks, as for instance the excessive weight of the revolving masses, fly collecting inside the drum and periodically settling on the yarn being wound as the fly is not easily removed, the difiicult access to the inside of the split drum causing loss of timewhen removing a broken end which has been wrapped round the shaft of the split drum. Whilst these drawbacks are absent in the above-mentioned rotary wing guide, we have seen that the latter cannot guide the yarn sufficiently well, for use in cross winding frames, particularly at. the points of reversal, the more so as the control by the wings does not extend over the whole circumference of the rotary guide, seeing that the circumference of the wing guide, as viewed in the direction of the shaft, does not form a complete circle, but a circle which is interrupted in two places. lVhilst there is a type of rotary thread guide which obviates this drawback by being composed of two rings forming a slot between them, this guide has the drawbackthat both rings extend over. the whole circumference and are therefore necessarily heavier,moreover, the narrow slot controlling the thread everywhere on both sides imposes a greater strain on it and causes more fly which cannot drop out of the closed rings so freely,besides, the yarn requires to be threaded into the slot by hand, as in the case of the split drum, which renders the attendance considerably more trouble some. K

The present invention has for its object the reduction of all these drawbacks by placing the inner arms of each wing in a sufiiciently slanting position with regard to the axis to get them out of the way of the yarn being guided by the peripheral guiding edges. At the same time, these two inner arms are shaped insuch a way that they serve as lead-over guides to pass the yarn automatically from one wing to the other,

the perfect control of the yarn being thus always maintained by either one or the other of the wings. In some cases it is sufiicient to place the inner arms on the slant only to alimited extent, so as to put the yarn under rather less tension than in. the case of the wing guides with radial arms only, whilst in other cases it is desirable to take the inner arms so far out of the way of the yarn that the latterwill not touch them at all. The peripheral parts of the two wings of the rotary guide forming the object'of this invention are extended in the direction of their circumference so far that the'side view of the guide shows a closed circle, whilst the inner arms of the wings are developed in such a way that together with a part of the guide edges of the wings they form a threading device for the yarn. The. wings themselves may be of any cross section desired, they may be made of wire or of sheet metal, in the latter case for instance by taking an ordinary split drumand cutting-away all the material save that necessary to leave the desired guiding edges, doing away with all unnecessary weight, allowing the yarn to drop automatically into the revolving guide, and preventing fly from settling inside the rotating body of the guide. The arms which take-over the yarn from one wing to the other, will in this case be formed by corresponding metal strips which are left standing from the two halves of the split drum. The body of the wings remains connected to thcbosses of the former split drum what must be left standing of the ends of the latter. It is also teasibleto develop the two guide wings as metal plate segments, the edges which must have the same characteristic shape as described above for the wire wings, whilst theparts corresponding to the slanting wire arms must also be kept out of the way of thefya-rn substantially as described above for the wir guide. The guide edges must be rounded and smoothed. The body of the segments may be perforated or partly takenawa-y, or its weight may be reduced in other suitable ways. i

The boss carrying the two wings of the rotary guide may be in one piece or in se\' eral parts in such a way thatcach wing is carried on a separate collar. In the latter case, the two collars ol the pair of wings may be tened on a boss common to both collars, and this boss may be arranged on a shaft, from which it is driven by friction in some suitable fashion. In order to atford protection to the persomattending to the machine, and particularly to do away with the lee ing of the danger of accidei ts to her which would interfere with the proper attention to the machine, protectionappliances may be used, such as" detachable Q01- hinged protection plates or the like, which maybe slotted tor the purpose of the automatic introduction ot the yarn into the revolving wing guide. In those cases were such protection applr ances not used, means for the certain and automatic introduction of the yarn into the wing guide may be provided by having a tl'n'eadguide of wire or the like of suitable shape to ensure the proper guiding of the yarn into the revolving wing'guide."

Obviously it is impossible to drive the bobbin itself by friction from a wing guide as described. In cross winding frames hav ing a' revolving wing guide 01" the type hitherto time and as mentioned in the in.

troduction, it is possible to use a driving drum arranged laterally for driving the Cheese, but in such an arrangement the guit ing of the yarn by the rotarygnide of the old type was absolutely insuflicient for the reasons which, have already stated. There are also cross winding frames with split drum having an intermediate roller of small diameter which serves as a guide to the yarn and which receives motion by triction from the surface of the split drum, transmitting same again by friction to the cheese, but in this case friction losses cannot beavoided and as a consequence the bol bin is irregularly wound. In order to ensure in our present invention proper guiding of the yarn from the point where it leaves the revolving wing guide up to the point where it is placed on the spool, such a little roller driving the bobbin is placed between the llyer thread guide and the spool, but whilst this roller of small diameter is in itscli known, we ensure regular winding oi? the spool or cheese by introducing a positive driving connection between the shaft or" the rotary wing guide and the roller of the small diameter which also serves as thread guide.

Tl e drawings represent the following details:

Figures 1 and 2 show a pa t of the cross winding frame fitted with the object of the invention, in front and side view respectively.

F-lQl-UTCS 3, l and 5 show an example of the revolting fi yer guide as made of wire, in 3 views.

I? 6, T and 8 show the revolving llyer :guide as obtained from cutting certain parts away from the pair of halves of a split drum, in three views.

Figure 9 shows a rcrolving win guide according to the invention as made of two metal plates which are suitalilycurved and shaped and unessential parts of which may be cut away so as to render. it lighter.

Figs. lO-to 13 shown pair of revolving wing guides as cast or stampedoutof metal, Figs. 10 and 1.1 showing the two wingpart; separately, whilst the pair is shown onits shaft in 12, Fig. 13 showing a top view of the arrangement represented by Fig. 12. In the example as represented by Figs. 1 to 5, each wing guide consists of a circular wire part 16 extending from 12 to 13 and a similar part1? extending from 1 to 15 running in the direction of the arrow marl-cede? and supported on arms a, Z), 0 made "or the same wire for the purpose of fixing the guides on the collars l8 and 19. l'letlr collars are fastened on a common boss t which'is loose on the thread guide shaft 21' but driven by the latter by friction in some suitable way, a kind of friction coupling, mentioned already, This'fric- 27 from the same tional connection is intended to allow an immediate stoppage of the vthread guide in case-the attendant gets her hands into the wing guides, that is to prevent accidents. Instead of providing such a coupling for each separate thread guide, it can also be applied to groups of guides. When seen from the side, the annular parts 16 and 17 form a closed circle, the more so as the two fractional parts of a circle cover each other between 12 and and between 13 and 14, in such a way as to form at these points slots (Z, clearly shown in Fig. 5. e point of reversal of the yarn is at 13 for the are 17. and at 15 for the are 16.

The three parts 18, 19 and 20 can be made of one piece it the two guide wings with regard to one another is not necessary.

Figure 2 shows only part of the machine and only two yarn guides and it shows also the small diameter roller 26 between the revolving thread guides and the bobbins. This small roller 26 may be driven by axis which drives the shaft of the rotary'wing guide. The bobbins may be carried in frames '28 in the usual well known fashion and rest on the shaft 26 which may be of the length of the complete machine, in which case it would drive all the cheeses on one side of the frame at the same time, but this roller may also be ardrive every spool separately of bobbins. As will be seen and 2, the roller 26 serves also as a guide for the yarn after the latter has left the revolving wing guide, the yarn running over part of its circumference in such a way that it will always assume the same position on the roller every time it passes the position of reversal in consequence of its tension and of the friction on the roller, thus ensuring that the width of traverse of the yarn on the spool is always the same and that therefore the ends of the cheese are straight and faultless.

As shown in Fig. 1, the machine can be fitted with hand rests 29 along the whole frame, in order to facilitate the piecing operation on ranged so as to or drive groups from Figures 1 the part of the attendant. Protection plates 30 are also shown hinged at a rod 31. Between. the protection plates which are shown in dotted lines only, there are slots 32 for the yarn to pass through and which serve at the same time to introduce the yarn automatically into the revolving wing guides. Where protection plates are not wanted and where therefore only a de vice for the secure introduction of the yarn into the revolving wing guide is required, such device may take some other form of wire, metal plate, or the like, and it may be applied separately.

In the example as per Figs. 6 to 8, certain parts have been 0111 away from a pair the relative adjustment of band the respective of ordinary split drum halves, the parts left representing only the actual guiding edges and their necessary support, whilst the parts which are not essential for the guiding of the yarn have been eliminated, thus incidentally allowing the yarn to thread itself automatically into the revolving wing guide and'preventing fly from settling inside the guide. For the purpose of easy comparison, the various parts are marked with the same reference characters, primed as shown in Figs. 3 to 5. The arms a are formed partly by the drum shell, partly by the end faces of the drums or by parts of same. Fig. 9 shows the rotary wing guide as made of two segment discs 16 and 17. In each' of the cases represented by'Figs. 6 to 9., the little roller 26 is, also essential, because without same the spools cannot be properly driven and the yarn cannot be laid on the spool with the required exactitude the more so as the least lateral deflection'of peripheral parts of the guide wings is bound to give rise to irregularities.

In the working example as per Figures 10to 18, the parts 16"" and 17 arethe peripheral guiding parts, a' and b the guiding arms, whilst .0 represents strengthening stays. Those parts of the periphery and of the arms whichserve as guides to the yarn must also in this case be shaped in accordance with the requirements outlined above. The way of manufacture of the segment discs whether by stamping, casting, or in other suitable ways, does not form part of the subject matter seeing that the separate segment discs are made of one piece with their corresponding collar soldering and squaring operations are unnecessary, thus saving time and considerably reducing the cost of manufacture of the guide wings. In cases where the guide wings are made of a light metal, the centrifugal action on the peripheral parts may be reduced, thus causing a corresponding reduction of the weight and strain on the shaft carrying the rotary wing guides, with the possibility of reduction of the diameter of this shaft.

Claims:

1. A'rotary thread guide for cross winding frames, comprising rotating wings having their peripheral guide elements angular-1y disposed relative to their axis of rotation, and supporting arms for said guide elements, the supporting arms for the trailing ends of said guide elements being sloped away from trans-axial planes of said guide elements, as described.

2. A rotary thread guide for cross winding frames, comprising rotating wings having their peripheral guide elements angularly disposed relative to their axis of rotation, and supporting arms for said guide elements, the supportlng arms for the trailing ends of said guide elements being sloped away from of the invention,

' ing the respective trans-axial planes of said guide elements for preventing contact of the thread with said arms, as described.

3. A rotary thread frames, comprising rotating Wings having their peripheral guide elements angularly disposed relative to their axis of rotation, and. supporting arms for said guide elements, the supporting arms for the trailing ends of said guide elements being sloped away from. the respective trans-axial planes of said guide elements for guiding the thread in its passage to the succeeding guide ele ment, as described.

4. A rotary thread guide for cross winding frames, comprising rotating wings having their peripheral guide elements angularly disposed relative to their axis of rotation, and supporting arms for said guide elements, the supporting arms for the trailing ends of said guide elements being sloped away from the respective trans-axial planes of said guide elements, said guide elements overlapping each other, as described.

5. A rotary thread guide according to claim 1' in which the peripheral part of each wing is made of one piece with the arm and collar parts, the unessential parts of the wings being eliminated.

6. Rotary thread guide according to claim 1 in which the peripheral parts of each Wing guide for cross windis made of one metal strip in one piece with the corresponding arms.

7. A rotary thread guide according to claim 1, in which each wing is supported on a separate axial collar.

8. In combination with a rotary thread guide according to claim 1, one or more protection plates arranged in front'of the revolving wings, said protection plates having slots for admitting the yarn.

9. In combination with a rotary thread guide according to claim 1, a pair of protection plates disposed adjacent each guide whereby the introduction slot for the yarn is formed by a space between each pair of said protection plates.

10. In combination with a rotary thread guide according to claim 1, a separate yarn introduction device operatively disposed relative to said guide. 7

ll. guide according to claim for the cheese, said rollerbeing driven in conjunction with said rotary thread guide and serving as tween the rotary thread guide and the cheese.

The foregoing specification signed at Cologne, Germa-ny,this 13th day of May,

IVILHELM REINERS. GUSTAV KAHLISCH.

In combination with a rotary thread 1, a driving roller a guide for the thread be: 

